Reducing-valve.



UNITED STATES Patented May 16, 1905.

PATENT OFFICE.

RE-DUClNG-VALVE..

SPEGIFICATIONibrming part of Letters Patent N0. 790,056', dated May 16,1905.

Application filed October 21, 1904:. Serial No. 229,432.

To @ZZ whom it may concern:

Be it known that I, GEORGE M. HTLGER, a citizen of the United States,and a resident of Chicago, in thecounty of Cook and State of Illinois,have invente'da new and Improved Reducing-Valve, of which the followingis a full, clear, and exact description.

The object of the invention is to provide a new and improvedreducing-valve which is simple and durable in construction, veryeffective, and sensitive in operation, and arranged to prevent jerkingor jarring of the valve when in use The invention consists of novelfeatures and parts and combinations of the same, as will be more fullydescribed hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying Vdrawings,v

forming a part of this specification, in which similar characters ofreference indicate corresponding parts in both views.

Figure l is a sectional side elevation of the improvement, and Fig. 2 isan inverted plan view of the same.

The valve-body A is provided with an inlet A and an outlet A2, separatedfrom the inlet by a valve-seat A, on which is adapted to be seated aball-valve B, resting loosely on a seat C', formed on the upper end of apiston C, mounted to slide loosely in a bonnet or cylinder D, screwed orotherwise fastened on the valve-body A in axial alinement with the seatA3. The bonnet D extends from the outlet side of the valve-body A, asplainly indicated 'fitted with its upper portion into a recess C3,

formed in the bottom of the piston C, and the lower end of the saidspring E rests on a cupshaped follower F, arranged in the lower portion`of the bonnet D. A screw-rod G, screwing in the closed lower end of thebonnet, abuts against the under side of the follower F, so that onscrewing the screw-rod inward or outward the tension of the spring E canbe increased or diminished.

After the tension of the spring E is set to the desired degree byadjusting the screw-rod D, as described, the latter is locked in placeby a suitable jam-nut H.

By the arrangement described the ball-valve B is loosely seated on theseat C of the piston C, which thus forms a spring-pressed support forthe ball-valve, so that the latter atall times properly seats itself onthe seat A3 in the valve-body A. y

In case the valve is used for reducing or throttling steam, forlinstance, the water of condensation filling the recess C2 acts as ahydraulic cushion for the ball-valve B, and the water of condensationpassing'into the bonnet D acts on the piston C in such-a manner thatwhen the valve B is open and the piston C is pressed downward againstthe tension of the spring E thenl the water is forced out of the bonnetD, and consequently the piston C and the displaced water act as adash-pot to preventundue jerking or jarring of the valve B when opening.

Thedevice is very simple and durable in construction, not liable toeasily get out of order, and is very sensitive, and jarring or j erk-`ing of the valve is reduced to a minimum.

Having thus described my invention, I claim as new and desire to secureby Letters Pate-ntl. A reducing-valve comprising a valvebody having aninlet, an outlet, a valve-seat between the inlet and outlet and acylindrical extension in aXial alinement with the said valve-seat, aball-valve adapted to be seated on the said seat, and a spring-pressedpiston in the said extension, carrying the said ballvalve,said pistonhaving a recess therein admitting a portion of the valve without beinglilled thereby, as and for the purpose set forth.

2. A reducing-valve comprising a valvebody having an inlet, an outlet, avalve-seat between the inlet and outlet, a cylindrical extension inaxial alinement with said valve-seat, a ball-valve adapted to be seatedon the said seat, and a spring-pressed piston on the said extension,provided with a seat for the said ball-valve to rest on, said seathaving therein a recess admitting a portion of the valve with- 5 outbeing filled thereby, adapting the recess to receive Water ofcondensation.

3. A reducing-valve comprising a valvebody, e. ball-valve adapted to beseated in the said valve-body, and a spring-pressed movable IO Supportfor the said ball-valve, having therein a, recess admitting a portiononly of the valve Without being iilled thereby.

In testimonyv WhereoiI ,l have signed my name to this speciiication inthe presence of two sul scribing Witnesses.

GEORGE M. HlLGER.

Vitnesses:

JEAN P. CLEMES, E. C. BARRY.

